Britannica Online School Edition offers teachers and students access to three complete encyclopedias, the Encyclopedia Britannica, the Britannica Student Encyclopedia and the Britannica Elementary Encyclopedia that ensure consistency with classroom-topics and age-appropriate language. Teacher and student tools are also included such as video, media, journals, magazines, interactive activity guides, lesson plans, an Internet guide and downloadable student activities. The School Edition has 118,000 articles, 22,000 images, 2,000 video clips, 24,000 biographies and detailed maps of 196 countries. Merriam-Webster's Dictionary and Thesaurus and Spotlight features are also a part of this resource.